Seattle Public Utilities Prepares for 2026-27 Winter Tides, Monitors Weather Patterns
Seattle Public Utilities (SPU) is preparing for the highest predicted winter tides from November 2026 through early March 2027. Residents and businesses near tidal waters are advised to plan for and track these tides, which are expected to exceed 10 feet North American Vertical Datum of 1988 (NAVD 88). Specific periods of concern include November 25-29, December 24-30, January 22-27, and February 21-24. SPU continuously monitors storms, tides, and atmospheric pressure to prepare for and respond to potential flooding events. This year, the utility is also closely observing how weather patterns such as Super El Niño and Kelvin waves could further elevate water levels. SPU encourages the public to utilize Seattle’s Flood Safety webpage for preparedness information and to sign up for AlertSeattle, the city’s official emergency alert system. For urgent flooding or sewer backup issues, residents can contact SPU’s 24/7 Operations Response Center.
